The skin around the elbows and knees is usually thicker and has more folds than its surrounding skin. Also, because there are no oil glands in these areas, this skin tends to be drier. So, when proper care and hygiene is not maintained, the skin on knees and elbows becomes much darker than other parts of your body.
Other factors like frequent rubbing, overexposure to the sun, genetic factors, dry skin, hormonal imbalance, obesity, dead skin buildup and more are causes of dark elbows and knees but there are home remedies to deal with them
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